amazon-ford: install udev configs under /usr/lib/ and split into $pkgname-udev subpackage

Signed-off-by: Aster Boese <asterboese@mailbox.org>
Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/7544>

device/downstream/device-amazon-ford/APKBUILD

@@ -2,7 +2,7 @@
 pkgname=device-amazon-ford
 pkgdesc="Amazon Fire 7 (2015)"
 pkgver=3
-pkgrel=0
+pkgrel=1
 url="https://postmarketos.org"
 license="MIT"
 arch="armv7"
@@ -15,6 +15,7 @@ depends="
 	msm-fb-refresher
 "
 makedepends="devicepkg-dev"
+subpackages="$pkgname-udev"
 source="
 	deviceinfo
 	90-android-touch-dev.rules
@@ -26,7 +27,8 @@ build() {
 
 package() {
 	devicepkg_package $startdir $pkgname
-	install -Dm644 "$srcdir"/90-android-touch-dev.rules "$pkgdir"/etc/udev/rules.d/90-android-touch-dev.rules
+	install -Dm644 "$srcdir"/90-android-touch-dev.rules \
+		"$pkgdir"/usr/lib/udev/rules.d/90-android-touch-dev.rules
 }
 
 sha512sums="